January 8 - West Germany has 8 million refugees inside its borders. February 6 - Elizabeth II becomes Queen upon the death of her father George VI. February 6 - In the United States, a mechanical heart was used for the first time in a human patient. February 15 - Funeral of King George VI took place at St George's Chapel, Windsor Castle. February 26 - United Kingdom Prime Minister Winston Churchill announced that the nation had an atomic bomb. May 2 - First passenger jet flight route between London and Johannesburg June 15 - The Diary of Anne Frank published. July - France, West Germany, Italy, Belgium, Luxembourg and the Netherlands formed the European Coal and Steel community, the foundation organisation what will become the European Union.July 13 - East Germany announced formation of its people's army. July 19 to August 3 - The Summer Olympic Games were held in Helsinki. July 19 to July 26 - Washington DC was "buzzed" by several UFOs tracked on multiple radars. Jets were scrambled on several occasions and objects took evasive action only to return after the jets left the area. August 16 - Lynmouth in North Devon was devastated by floods,which killed 34 people. August 26 - A British passenger jet flew twice over Atlantic Ocean in the same day. October 8 - A three-train crash in Harrow railway station left 110 dead. November 20 - The first official passenger flight took place over the North Pole from Los Angeles to Copenhagen November 25 - Agatha Christie's murder-mystery play The Mousetrap opened at the Ambassadors Theatre in London; as of 2004, it continued, next door at the St. Martin's Theatre, and remains the longest continuously running production of a play in history. December 4 - A "killer fog" descended on London ("Smog" for "smoke" and "fog" becomes a word). Also in 1952:*The first video recorder was demonstrated in Beverly Hills by its inventors John Mullin and Wayne Johnson*Charles Chaplin had his US entry visa withheld while a disloyalty inquiry took place.*New Musical Express published the first UK singles chart.*Scrabble made its debut and soon rivalled Monopoly in popularity*British Kite Mark introduced.*Pat Eddery, champion jockey, born.*TWA introduced a tourist class ticket b- the first airline to do so.*Anne Frank's Diary first published.*April - Elvis Presley was fired from his job at Loew's State Theatre after punching a fellow usher.*Actress Elizabeth Taylor married Michael Wilding.